©2025 Copeland LP.
026-1803 R13 Supervisor I&O User Guide 7 - 4
7.2.3.1 I/O Network and MultiFlex RTU
Setup on Serial Port
1. Navigate to serial port configuration screen, select an
unused port and configure it as an I/O network port.
2. Configure the baud rate of the I/O network port, then
select MultiFlex RTU from the supported board types for
this port. Set the number of board needed to setup, click
Save to add the RTU devices. RTU board status will
appear “Online”.
3. Navigate to the “HVAC - RTU_0X” device status screen
through the site map, the status screen
displays the following sections:
• General
• Inputs
• Outputs
• RTU Outputs
4. Click Details on the status screen, the system will display
the properties of the RTU board by the properties group.
You can now view and configure the properties of the
RTU board.
5. After configuring the properties, the new values can be
sent to RTU application on the Supervisory Controller
and RTU board on the I/O network. The RTU board can
now work correctly on the controller.
7.2.3.2 Creating an Instance of RTU
Application
You can create an instance of RTU application even if the
RTU board is not connected to the Supervisory Controller,
however the board status is displayed “Offline”.
If the RTU board is connected to the supervisory controller
through the I/O network, the supervisory controller should
find the RTU board and its property values and should be
read on the controller through the I/O network.
7.2.3.3 Deleting/Checking Status of RTU
Board
You can navigate to Network Summary screen to do the
following operations:
1. View all the devices connected to the Site Supervisor
from the I/O network and its online status.
2. Delete a device.
3. View the I/O network traffic status.
4. Navigate to the summary screen of a specific device.
7.2.3.4 Zone Management
You can associate an RTU application with a zone. Zone is a
group of RTUs and/or AHU (air handling unit) applications
that shares the same heating, cooling, dehumidification
setpoints, and other control parameters. The primary purpose
of zone control is to maintain a specific temperature and
humidity level throughout a wide area using multiple rooftop
units.
When an RTU application is associated with a zone, some
inputs of RTU application should use the output values from
zone. These are the property mapping list:
7.2.3.5 Scheduling
Daily (from Monday to Sunday) schedules of Occupied/
Unoccupied state can be set and send to the RTU board.
7.2.3.6 Alarming
Alarms generated from RTU board will be received and
reported by Alarm management in Site Supervisor. You can
configure the attribution, type and category of the alarms
generated from RTU board.
Any reset or clear actions performed on the UI is forwarded to
the RTU board.
Table 7-3- RTU and Zone Property Mapping List
RTU Inputs Zone Outputs
ZONE OCC ZONE_OCC_STATE
ZONE TEMP ZONE_TEMP_OUT
ECONMIZE ZONE ECON OK
DEHUMDIFY ZONE DEHUM ACTIVE
OCC HEAT ZONE HEAT OCC OUT
UNOCC HEAT ZONE HEAT UOC OUT
OCC COOL ZONE COOL OCC OUT
UNOCC COOL ZONE COOL UOC OUT
OCC DEHUM ZONE FB HUMID STPT
SEASON ZONE_SUM_WIN_MODE_OUT
NOTE
NOTE: The RTU does not have the
capability of resetting individual
alarms. All alarms on the RTU will be
reset or cleared by the RTU if anyone
resets or clears the alarms in the
Supervisory Controller.
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